| // Copyright 2014 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| var records; |
| function observer(r) { |
| records = r; |
| } |
| |
| Object.defineProperty(Array.prototype, '0', { |
| get: function() { return 0; }, |
| set: function() { throw "boom!"; } |
| }); |
| arr = [1, 2]; |
| Array.observe(arr, observer); |
| arr.length = 0; |
| assertEquals(0, arr.length); |
| |
| Object.deliverChangeRecords(observer); |
| assertEquals(1, records.length); |
| assertEquals('splice', records[0].type); |
| assertArrayEquals([1, 2], records[0].removed); |